2009-09-09 Tristan Gingold <gingold@adacore.com>

	Handle DYLD_INFO introduced by Darwin10.
	* mach-o.h (bfd_mach_o_load_command_type): Add
	BFD_MACH_O_LC_DYLD_INFO.
	(bfd_mach_o_dyld_info_command): New type.
	(bfd_mach_o_load_command): Add dyld_info field.
	* mach-o.c (bfd_mach_o_scan_read_str): Reduce size of buf.
	(bfd_mach_o_scan_read_dyld_info): New function.
	(bfd_mach_o_scan_read_command): Handle BFD_MACH_O_LC_DYLD_INFO.
	(bfd_mach_o_bfd_print_private_bfd_data): Ditto.
	(bfd_mach_o_load_command_name): AddB FD_MACH_O_LC_DYLD_INFO.
	(bfd_mach_o_print_dyld_info): New function.

3 files changed, 93 insertions, 2 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 9fd34c2e8ea..39ee6fd19a2 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,18 @@
+2009-09-09  Tristan Gingold  <gingold@adacore.com>
+
+	Handle DYLD_INFO introduced by Darwin10.
+	* mach-o.h (bfd_mach_o_load_command_type): Add
+	BFD_MACH_O_LC_DYLD_INFO.
+	(bfd_mach_o_dyld_info_command): New type.
+	(bfd_mach_o_load_command): Add dyld_info field.
+	* mach-o.c (bfd_mach_o_scan_read_str): Reduce size of buf.
+	(bfd_mach_o_scan_read_dyld_info): New function.
+	(bfd_mach_o_scan_read_command): Handle BFD_MACH_O_LC_DYLD_INFO.
+	(bfd_mach_o_bfd_print_private_bfd_data): Ditto.
+	(bfd_mach_o_load_command_name): AddB FD_MACH_O_LC_DYLD_INFO.
+	(bfd_mach_o_print_dyld_info): New function.
+
+
 2009-09-09  M R Swami Reddy <MR.Swami.Reddy@nsc.com>
 
 	* elf32-cr16.c (elf32_cr16_relocate_section): Add code to discard the
diff --git a/bfd/mach-o.c b/bfd/mach-o.c
index d1d6e70f154..5cf531ea069 100644
--- a/bfd/mach-o.c
+++ b/bfd/mach-o.c
@@ -2195,7 +2195,7 @@ static int
 bfd_mach_o_scan_read_str (bfd *abfd, bfd_mach_o_load_command *command)
 {
   bfd_mach_o_str_command *cmd = &command->command.str;
-  char buf[8];
+  char buf[4];
   unsigned long off;
 
   if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
@@ -2215,6 +2215,29 @@ bfd_mach_o_scan_read_str (bfd *abfd, bfd_mach_o_load_command *command)
 }
 
 static int
+bfd_mach_o_scan_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
+{
+  bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
+  char buf[40];
+
+  if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
+      || bfd_bread ((PTR) buf, sizeof (buf), abfd) != sizeof (buf))
+    return -1;
+
+  cmd->rebase_off = bfd_get_32 (abfd, buf + 0);
+  cmd->rebase_size = bfd_get_32 (abfd, buf + 4);
+  cmd->bind_off = bfd_get_32 (abfd, buf + 8);
+  cmd->bind_size = bfd_get_32 (abfd, buf + 12);
+  cmd->weak_bind_off = bfd_get_32 (abfd, buf + 16);
+  cmd->weak_bind_size = bfd_get_32 (abfd, buf + 20);
+  cmd->lazy_bind_off = bfd_get_32 (abfd, buf + 24);
+  cmd->lazy_bind_size = bfd_get_32 (abfd, buf + 28);
+  cmd->export_off = bfd_get_32 (abfd, buf + 32);
+  cmd->export_size = bfd_get_32 (abfd, buf + 36);
+  return 0;
+}
+
+static int
 bfd_mach_o_scan_read_segment (bfd *abfd,
 			      bfd_mach_o_load_command *command,
 			      unsigned int wide)
@@ -2384,6 +2407,10 @@ bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command)
       if (bfd_mach_o_scan_read_linkedit (abfd, command) != 0)
 	return -1;
       break;
+    case BFD_MACH_O_LC_DYLD_INFO:
+      if (bfd_mach_o_scan_read_dyld_info (abfd, command) != 0)
+	return -1;
+      break;
     default:
       fprintf (stderr, "unable to read unknown load command 0x%lx\n",
 	       (unsigned long) command->type);
@@ -3183,6 +3210,7 @@ static bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] =
   { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB},
   { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB},
   { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO},
+  { "dyld_info", BFD_MACH_O_LC_DYLD_INFO},
   { NULL, 0}
 };
 
@@ -3538,6 +3566,24 @@ bfd_mach_o_print_dysymtab (bfd *abfd ATTRIBUTE_UNUSED,
 
 }
 
+static void
+bfd_mach_o_print_dyld_info (bfd *abfd ATTRIBUTE_UNUSED,
+                            bfd_mach_o_load_command *cmd, FILE *file)
+{
+  bfd_mach_o_dyld_info_command *info = &cmd->command.dyld_info;
+
+  fprintf (file, "       rebase: off: 0x%08x  size: %-8u\n",
+           info->rebase_off, info->rebase_size);
+  fprintf (file, "         bind: off: 0x%08x  size: %-8u\n",
+           info->bind_off, info->bind_size);
+  fprintf (file, "    weak bind: off: 0x%08x  size: %-8u\n",
+           info->weak_bind_off, info->weak_bind_size);
+  fprintf (file, "    lazy bind: off: 0x%08x  size: %-8u\n",
+           info->lazy_bind_off, info->lazy_bind_size);
+  fprintf (file, "       export: off: 0x%08x  size: %-8u\n",
+           info->export_off, info->export_size);
+}
+
 bfd_boolean
 bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, PTR ptr)
 {
@@ -3660,6 +3706,10 @@ bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, PTR ptr)
               }
             break;
           }
+	case BFD_MACH_O_LC_DYLD_INFO:
+          fprintf (file, "\n");
+          bfd_mach_o_print_dyld_info (abfd, cmd, file);
+          break;
 	default:
 	  fprintf (file, "\n");
 	  break;
diff --git a/bfd/mach-o.h b/bfd/mach-o.h
index 0f48324f52f..c1831e4bc14 100644
--- a/bfd/mach-o.h
+++ b/bfd/mach-o.h
@@ -132,7 +132,8 @@ typedef enum bfd_mach_o_load_command_type
   BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg.  */
   BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,  /* Load and re-export lib.  */
   BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use.  */
-  BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21  /* Encrypted segment info.  */
+  BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21, /* Encrypted segment info.  */
+  BFD_MACH_O_LC_DYLD_INFO = 0x22	/* Compressed dyld information.  */
 }
 bfd_mach_o_load_command_type;
 
@@ -768,6 +769,30 @@ typedef struct bfd_mach_o_str_command
 }
 bfd_mach_o_str_command;
 
+typedef struct bfd_mach_o_dyld_info_command
+{
+  /* File offset and size to rebase info.  */
+  unsigned int rebase_off; 
+  unsigned int rebase_size;
+
+  /* File offset and size of binding info.  */
+  unsigned int bind_off;
+  unsigned int bind_size;
+
+  /* File offset and size of weak binding info.  */
+  unsigned int weak_bind_off;
+  unsigned int weak_bind_size;
+
+  /* File offset and size of lazy binding info.  */
+  unsigned int lazy_bind_off;
+  unsigned int lazy_bind_size;
+
+  /* File offset and size of export info.  */
+  unsigned int export_off;
+  unsigned int export_size;
+}
+bfd_mach_o_dyld_info_command;
+
 typedef struct bfd_mach_o_load_command
 {
   bfd_mach_o_load_command_type type;
@@ -786,6 +811,7 @@ typedef struct bfd_mach_o_load_command
     bfd_mach_o_uuid_command uuid;
     bfd_mach_o_linkedit_command linkedit;
     bfd_mach_o_str_command str;
+    bfd_mach_o_dyld_info_command dyld_info;
   }
   command;
 }